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快速环保选择性染料去除使用改性基托桑基海绵:合成,表征和应用
Ibtisam Bin Sharfan1, Zainah A AlDhawi1, Mahmoud A Abdulhamid1
1Sustainable and Resilient Materials Lab, Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering & Geosciences (CPG), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
International journal of biological macromolecules
|July 3, 2024
概括
经过化学修饰的奇托桑海绵为净化水提供了可持续的解决方案. 这些绿色海绵有效地去除甲基色染料,证明了废水处理的高容量和可重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物化学 聚合物化学
背景情况:
- 全球人口增长和工业化加剧了水资源短缺和污染.
- 迫切需要有效和可持续的水处理解决方案.
- 一种生物聚合物 - - 基托,具有开发新型净水材料的潜力.
研究的目的:
- 开发和描述可持续的基托桑基海绵,以有效地从水中去除染料.
- 研究基链修饰对海绵性质和吸附能力的影响.
- 评估开发的水处理海绵的选择性和可重复使用性.
主要方法:
- 通过化学修饰合成四种基托桑基海绵,其基链长度不同.
- 描述海绵的稳定性,染料吸附能力和去除效率.
- 使用甲基色 (MO),甲蓝色 (MB) 和Rhodamine B (RB) 的吸附性研究,包括竞争性吸附性实验.
- 动力和同热分析 (伪二阶,兰慕尔,弗罗恩德利希模型).
- 在多个吸附-脱附周期中评估海绵的可重复使用性.
主要成果:
- 基托桑海绵表现出优异的水稳定性和高的染料去除效率.
- 甲基的吸附能力在238至380毫克g-1之间,与基链长度相关.
- 海绵显示,MO从混合染料溶液中被选择性地去除,分离因子在1.6到32之间.
- 吸附遵循伪二阶动力学和兰格穆尔模型.
- 在5个循环中,海绵保持了稳定的性能,坚固性和可重复使用性.
结论:
- 化学修饰的奇托桑海绵是水处理的有效和可重复使用的材料.
- 基链的修改影响了甲基色的吸附能力.
- 这些海绵显示出选择性去除废水中的污染物的巨大潜力.
- 可持续和绿色合成方法强调了它们的环境适用性.
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